According to Pollan, the advent of “nutritionism” has vastly complicated how Americans see food, without doing very much for our health. Nutritionism arose to deal with genuine issues – addressing chronic diseases such as obesity, diabetes and many cancers – but now seems to be obscuring and perpetuating the real problems of the American diet, says Pollan. His opening manifesto is simple: “Eat food. Not too much. Mostly plants.” Learn how living by this deceptively simple advice could immensely improve your life.